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Reimbuddy

ReimBuddy, a blockchain-based platform to streamline and secure reimbursements. Users submit claims, attesters validate, and companies authorize payouts. While ensuring identity authenticity, encrypted data is stored on-chain. LLMs assess claim legitimacy.

Reimbuddy

Created At

ETHGlobal Singapore

Winner of

Worldcoin - Pool Prize

Prize Pool

Project Description

We're developing an innovative blockchain solution to automate and enhance the reimbursement process, ensuring transparency and speed.

System Overview

Actors:

  1. User: Submits reimbursement claims.
  2. Attester: A trusted intermediary validating claims.
  3. Processing Entity: The company responsible for fund disbursement.

User Flow Users can log in via SSO or MetaMask, utilizing World ID from the Worldcoin ecosystem for privacy-first identity verification. This generates a unique nullifier hash and wallet mapping, preventing wallet duplication.

Upon successful login, users create reimbursement requests by completing a form with essential details (title, description, attester address, amount, and document uploads). Documents are encrypted with the attester's public key and uploaded to IPFS, while relevant metadata is stored on the blockchain, ensuring confidentiality and security.

After submission, users are redirected to a home page displaying previous claims and a progress bar to track their request's status, fostering transparency.

The platform employs the Sign Protocol for verifiable attestations, enhancing data validation. Worldcoin integration mitigates duplication, ensuring authentic user identities.

Attesters log in similarly to review claims, verify documents, and approve or reject requests. Upon resolution, users receive email notifications.

Additionally, the project leverages LLMs through the Phala Network to assess claim authenticity, classifying submissions as genuine or fraudulent by analyzing existing market data.

How it's Made

Building this reimbursement platform involved a multi-faceted approach, integrating various partner technologies to ensure efficiency, security, and user experience. Using the modern technologies we have positioned ourselves to address the challenges of traditional reimbursement processes effectively. Following Partner technologies were used in the project-

@ WorldCoin We use WorldCoin's World ID to ensure privacy-first identity verification for users. Upon logging in, users receive a unique nullifier hash that maps their wallet address to their World ID, preventing duplicate wallets and enhancing authenticity in the reimbursement process.

@Sign Protocol The Sign Protocol facilitates the creation of verifiable attestations on-chain. It allows us to securely validate digital information such as identities and claims. This ensures that all data involved in the reimbursement process is trustworthy and verifiable, improving governance and transparency.

@Phala Network We leverage the Phala Network to incorporate Large Language Models (LLMs) that analyze reimbursement claims. This AI-driven approach helps attesters determine the authenticity of claims by comparing them against existing market data, classifying submissions as genuine or potentially fraudulent.

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